提交 b42dfc4e 编写于 作者: A Andrey Breslav

Removed junk from the test, accidentally deleted test restored

上级 98d3f826
......@@ -48,16 +48,4 @@ class NoCPI {
var ab = <error>1</error>
get() = 1
set(v) {}
}
a.select(it => it.toString()).where(it => it < 1)
a.select{it.toString()}.where{it < 1}
for (a in 1..10)
for ((val a, val b) in range)
for ((a, b) in range) {
is Foo => sdgfsdg
}
\ No newline at end of file
class BinaryHeap<T>(_data : IIterable<T>, compare : Comparison<T> = naturalOrder<T>) : IPriorityQueue<T> {
private val data : IMutableList<T> = new ArrayList(_data)
{
for (val i in data.size / 2 .. 0) {
siftDown(i)
}
}
override fun extract() : T {
if (this.isEmpty)
throw new UnderflowException()
data.swap(0, data.lastIndex)
data.remove(data.lastIndex)
siftDown(0)
}
override fun add(item : T) {
data.add(item)
siftUp(data.lastItem)
}
private fun siftDown(index : Int) {
var current = index
while (current.left.exists) {
var min = current
if (current.left.value < min.value) {
min = current.left
}
if (current.right.exists && current.right.value < min.value) {
min = current.right
}
if (min == current) break
data.swap(min, current)
current = min
}
}
private fun siftUp(index : Int) {
if (!current.exists) return
var current = index
while (current.parent.exists) {
if (current.value < current.parent.value) {
data.swap(current, current.parent)
current = current.parent
}
}
}
private extension HeapIndex for Int {
val parent : Int
get() = (this - 1) / 2
val left : Int
get() = this * 2 + 1
val right : Int
get() = this * 2 + 2
val value : T = foo.bar()
get() = data[this]
set(it) {
$value = it
}
val exists : Boolean
get() = (this < data.size) && (this >= 0)
}
private extension for T {
fun compareTo(other : T) : Int = compare(this, other)
}
}
fun <T> IMutableList<T>.swap(a : Int, b : Int) {
val t = this[a]
this[a] = this[b]
this[b] = t
}
val <T> IList<T>.lastIndex : Int
get() = this.size - 1
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